wiring cs130d to cs144 alternator

I have an 04 Chevrolet Avalanche 4WD 1500 that I am swapping a 200a CS144 alternator into. I have the plug for the CS144 that I am trying to wire to the truck wiring. The truck plug I believe is a CS130D and has 3 unlabeled wires a blue, grey, and brown. The brown is Ign, but I don't know what the other 2 wires do. The CS144 plug has 4 wires. The "S" is red and larger guage, a Brn\wht "P", Brn\red "L", and Brn "F". I can't seem to find this info anywhere. I have found wiring for every other vehicle and application known to man. I haven't been able to find a wiring diagram for the truck. With the Brn\red "L" connected to the grey Ign, the alt will charge but the dash light flashes. I don't want to fry the regulator, so is anyone able to tell me which wire connects to which one? Truck plug Blue -->    ? Grey -->    ? Brown --> Ign?

Correction

mrmoto wrote: With the Brn\red "L" connected to the Brown Ign, the alt will charge but the dash Batt light flashes.

Blue is connected to the supplemental brake assist pump motor (this terminal should correspond to the P [phase] terminal and outputs A/C) Gray is the field duty cycle signal to the PCM (this terminal corresponds to the F [feedback] terminal) Brown is for the charge lamp indicator (this terminal corresponds to the L [lamp] terminal) Here the charging system schematic. The terminal cross-references are: A = P B = L C = F D = S You can also use an adapter plug like the one shown in the middle of the following page. http://www.alternatorparts.com/CS-144_Special_offer.htm BTW, from the documentation that I have the stock unit is either an AD230 or AD244, rated at 102A and 130A, respectively.This information is provided only as a reference.

All circuits should be verified with a digital multi-meter prior to making any connections.

Thanks for the reply! That wiring worked great. I was pretty sure that was the way it needed to be. But I couldn't find any confirmations. I also talked to 2 Alternator\Auto electric shops. They couldn't tell me anything for sure without verifying the regulator. It was good to hear I was on the right track, and you identified the truck wires. Now it's all working as it should.